golang/docker-save-cli
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[feat] add rm option

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This commit is contained in:
jay 2022-07-19 16:42:05 +08:00
parent 1988ed6762
commit 7a23303a1b
2 changed files with 19 additions and 2 deletions
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4
cmd/main.go
View File

@ -16,6 +16,7 @@ func main() {
var imageName string
var tarName string
var doPull bool
var rm bool
rootCmd = &cobra.Command{
Use: "docker-save",
@ -27,7 +28,7 @@ func main() {
}
ctx := context.Background()
if err := docker.SaveImageTar(ctx, imageName, outputPath, tarName, doPull); err != nil {
if err := docker.SaveImageTar(ctx, imageName, outputPath, tarName, doPull, rm); err != nil {
log.Fatal(err)
}
},
@ -36,6 +37,7 @@ func main() {
rootCmd.Flags().StringVarP(&imageName, "image", "i", "", "image name")
rootCmd.Flags().StringVarP(&tarName, "name", "n", "", "tar name")
rootCmd.Flags().BoolVarP(&doPull, "pull", "p", false, "pull image")
rootCmd.Flags().BoolVarP(&rm, "rm", "", false, "delete image after save")
rootCmd.MarkFlagRequired("image")
rootCmd.MarkFlagRequired("output")

17
internal/docker/docker.go
View File

@ -12,7 +12,7 @@ import (
"github.com/docker/docker/client"
)
func SaveImageTar(ctx context.Context, image, path, name string, doPull bool) error {
func SaveImageTar(ctx context.Context, image, path, name string, doPull, rm bool) error {
cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
if err != nil {
@ -30,6 +30,12 @@ func SaveImageTar(ctx context.Context, image, path, name string, doPull bool) er
return fmt.Errorf("save image %s failed: %v", image, err)
}
if rm {
if err := rmImage(ctx, cli, image); err != nil {
return fmt.Errorf("remove image %s failed: %v", image, err)
}
}
return nil
}
@ -46,6 +52,15 @@ func pullImage(ctx context.Context, cli *client.Client, image string) error {
return nil
}
func rmImage(ctx context.Context, cli *client.Client, image string) error {
_, err := cli.ImageRemove(ctx, image, types.ImageRemoveOptions{})
if err != nil {
return err
}
return nil
}
func saveToTar(ctx context.Context, cli *client.Client, image, path, name string) error {
out, err := cli.ImageSave(ctx, []string{image})
if err != nil {